IDirect3DRM

Applications use the methods of the IDirect3DRM interface to create Microsoft® Direct3D® Retained Mode objects and work with system-level variables. This section is a reference to the methods of this interface. For a conceptual overview, see IDirect3DRM and IDirect3DRM2 Interfaces.

The methods of the IDirect3DRM interface can be organized into the following groups:

Animation	CreateAnimation
	CreateAnimationSet
Devices	CreateDevice
	CreateDeviceFromClipper
	CreateDeviceFromD3D
	CreateDeviceFromSurface
	GetDevices
Enumeration	EnumerateObjects
Faces	CreateFace
Frames	CreateFrame
Lights	CreateLight
	CreateLightRGB
Materials	CreateMaterial
Meshes	CreateMesh
	CreateMeshBuilder
Miscellaneous	CreateObject
	CreateUserVisual
	GetNamedObject
	Load
	Tick
Search paths	AddSearchPath
	GetSearchPath
	SetSearchPath
Shadows	CreateShadow
Textures	CreateTexture
	CreateTextureFromSurface
	LoadTexture
	LoadTextureFromResource
	SetDefaultTextureColors
	SetDefaultTextureShades
Viewports	CreateViewport
Wraps	CreateWrap

The IDirect3DRM interface, like all Component Object Model (COM) interfaces, inherits the IUnknown interface methods. The IUnknown interface supports the following three methods:

AddRef

QueryInterface

Release

The IDirect3DRM COM interface is created by using the Direct3DRMCreate function.

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IDirect3DRM::AddSearchPath

IDirect3DRM

Adds a list of directories to the end of the current file search path.

HRESULT AddSearchPath(
  LPCSTR lpPath
  );

Parameters

lpPath

Address of a null-terminated string, specifying the path to add to the current search path.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

For Microsoft® Windows®, the path should be a list of directories separated by semicolons (;).

See Also

IDirect3DRM::SetSearchPath

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IDirect3DRM::CreateAnimation

IDirect3DRM

Creates an empty Direct3DRMAnimation object.

HRESULT CreateAnimation(
  LPDIRECT3DRMANIMATION * lplpD3DRMAnimation
  );

Parameters

lplpD3DRMAnimation

Address that will be filled with a pointer to an IDirect3DRMAnimation interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Immediate Mode Return Values.

---

IDirect3DRM::CreateAnimationSet

IDirect3DRM

Creates an empty Direct3DRMAnimationSet object.

HRESULT CreateAnimationSet (
  LPDIRECT3DRMANIMATIONSET * lplpD3DRMAnimationSet
  );

Parameters

lplpD3DRMAnimationSet

Address that will be filled with a pointer to an IDirect3DRMAnimationSet interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateDevice

IDirect3DRM

Not implemented on the Windows platform.

HRESULT CreateDevice(
  DWORD dwWidth,
  DWORD dwHeight,
  LPDIRECT3DRMDEVICE* lplpD3DRMDevice
  );

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IDirect3DRM::CreateDeviceFromClipper

IDirect3DRM

Creates a Direct3D Retained Mode Windows device by using a specified DirectDrawClipper object.

HRESULT CreateDeviceFromClipper(
  LPDIRECTDRAWCLIPPER lpDDClipper,
  LPGUID lpGUID,
  int width,
  int height,
  LPDIRECT3DRMDEVICE * lplpD3DRMDevice
  );

Parameters

lpDDClipper

Address of a DirectDrawClipper object.

lpGUID

Address of a globally unique identifier (GUID). This parameter can be NULL.

width and height

Width and height of the device to be created.

lplpD3DRMDevice

Address that will be filled with a pointer to an IDirect3DRMDevice interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

If the lpGUID parameter is NULL, the system searches for a device with a default set of device capabilities. This is the recommended way to create a Retained Mode device because it always works, even if the user installs new hardware.

The system describes the default settings by using the following flags from the D3DPRIMCAPS structure in internal device-enumeration calls:

D3DPCMPCAPS_LESSEQUAL

D3DPMISCCAPS_CULLCCW

D3DPRASTERCAPS_FOGVERTEX

D3DPSHADECAPS_ALPHAFLATSTIPPLED

D3DPTADDRESSCAPS_WRAP

D3DPTBLENDCAPS_COPY | D3DPTBLENDCAPS_MODULATE

D3DPTEXTURECAPS_PERSPECTIVE | D3DPTEXTURECAPS_TRANSPARENCY

D3DPTFILTERCAPS_NEAREST

If a hardware device is not found, the monochromatic (ramp) software driver is loaded. An application should enumerate devices instead of specifying NULL for lpGUID if it has special needs that are not met by this list of default settings.

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IDirect3DRM::CreateDeviceFromD3D

IDirect3DRM

Creates a Direct3D Retained Mode Windows device by using specified Direct3D objects.

HRESULT CreateDeviceFromD3D(
  LPDIRECT3D lpD3D,
  LPDIRECT3DDEVICE lpD3DDev,
  LPDIRECT3DRMDEVICE * lplpD3DRMDevice
  );

Parameters

lpD3D

Address of an instance of Direct3D.

lpD3DDev

Address of a Direct3D device object.

lplpD3DRMDevice

Address that will be filled with a pointer to an IDirect3DRMDevice interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateDeviceFromSurface

IDirect3DRM

Creates a Windows device for rendering from the specified DirectDraw surfaces.

HRESULT CreateDeviceFromSurface(
  LPGUID lpGUID,
  LPDIRECTDRAW lpDD,
  LPDIRECTDRAWSURFACE lpDDSBack,
  LPDIRECT3DRMDEVICE * lplpD3DRMDevice
  );

Parameters

lpGUID

Address of the globally unique identifier (GUID) used as the required device driver. If this parameter is NULL, the default device driver is used.

lpDD

Address of the DirectDraw object that is the source of the DirectDraw surface.

lpDDSBack

Address of the DirectDrawSurface object that represents the back buffer.

lplpD3DRMDevice

Address that will be filled with a pointer to an IDirect3DRMDevice interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateFace

IDirect3DRM

Creates an instance of the IDirect3DRMFace interface.

HRESULT CreateFace(
  LPDIRECT3DRMFACE * lplpd3drmFace
  );

Parameters

lplpd3drmFace

Address that will be filled with a pointer to an IDirect3DRMFace interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateFrame

IDirect3DRM

Creates a new child frame of the given parent frame.

HRESULT CreateFrame(
  LPDIRECT3DRMFRAME lpD3DRMFrame,
  LPDIRECT3DRMFRAME* lplpD3DRMFrame
  );

Parameters

lpD3DRMFrame

Address of a frame that is to be the parent of the new frame.

lplpD3DRMFrame

Address that will be filled with a pointer to an IDirect3DRMFrame interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

The child frame inherits the motion attributes of its parent. For example, if the parent is moving with a given velocity, the child frame will also move with that velocity. Furthermore, if the parent is set rotating, the child frame will rotate about the origin of the parent. Frames that have no parent are called "scenes". To create a scene, specify NULL as the parent. An application can create a frame with no parent and then associate it with a parent frame later by using the IDirect3DRMFrame::AddChild method.

See Also

IDirect3DRMFrame::AddChild

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IDirect3DRM::CreateLight

IDirect3DRM

Creates a new light source with the given type and color.

HRESULT CreateLight(
  D3DRMLIGHTTYPE d3drmltLightType,
  D3DCOLOR cColor,
  LPDIRECT3DRMLIGHT* lplpD3DRMLight
  );

Parameters

d3drmltLightType

One of the lighting types given in the D3DRMLIGHTTYPE enumerated type.

cColor

Color of the light.

lplpD3DRMLight

Address that will be filled with a pointer to an IDirect3DRMLight interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateLightRGB

IDirect3DRM

Creates a new light source with the given type and color.

HRESULT CreateLightRGB(
  D3DRMLIGHTTYPE ltLightType,
  D3DVALUE vRed,
  D3DVALUE vGreen,
  D3DVALUE vBlue,
  LPDIRECT3DRMLIGHT* lplpD3DRMLight
  );

Parameters

ltLightType

One of the lighting types given in the D3DRMLIGHTTYPE enumerated type.

vRed, vGreen, and vBlue

Color of the light.

lplpD3DRMLight

Address that will be filled with a pointer to an IDirect3DRMLight interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateMaterial

IDirect3DRM

Creates a material with the given specular property.

HRESULT CreateMaterial(
  D3DVALUE vPower,
  LPDIRECT3DRMMATERIAL * lplpD3DRMMaterial
  );

Parameters

vPower

Sharpness of the reflected highlights, with a value of 5 giving a metallic look, and higher values giving a more plastic look to the rendered surface.

lplpD3DRMMaterial

Address that will be filled with a pointer to an IDirect3DRMMaterial interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateMesh

IDirect3DRM

Creates a new mesh object with no faces. The mesh is not visible until it is added to a frame.

HRESULT CreateMesh(
  LPDIRECT3DRMMESH* lplpD3DRMMesh
  );

Parameters

lplpD3DRMMesh

Address that will be filled with a pointer to an IDirect3DRMMesh interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateMeshBuilder

IDirect3DRM

Creates a new mesh builder object.

HRESULT CreateMeshBuilder(
  LPDIRECT3DRMMESHBUILDER* lplpD3DRMMeshBuilder
  );

Parameters

lplpD3DRMMeshBuilder

Address that will be filled with a pointer to an IDirect3DRMMeshBuilder interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateObject

IDirect3DRM

Creates a new object without initializing the object.

HRESULT CreateObject(
  REFCLSID rclsid,
  LPUNKNOWN pUnkOuter,
  REFIID riid,
  LPVOID FAR* ppv
  );

Parameters

rclsid

Class identifier for the new object.

pUnkOuter

Pointer to the outer IUnknown that allows COM aggregation features.

riid

Interface identifier of the object to be created.

ppv

Address of a pointer to the object when the method returns.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

An application that uses this method must initialize the object that has been created. (The other creation methods of the IDirect3DRM interface initialize the object automatically.) To initialize the new object, you should use the Init method for that object. An application should use the Init method only once to initialize any given object.

Applications can use this method to implement aggregation in Direct3DRM objects.

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IDirect3DRM::CreateShadow

IDirect3DRM

Creates a shadow by using the specified visual and light, projecting the shadow onto the specified plane. The shadow is a visual that should be added to the frame that contains the visual.

HRESULT CreateShadow(
  LPDIRECT3DRMVISUAL lpVisual,
  LPDIRECT3DRMLIGHT lpLight,
  D3DVALUE px,
  D3DVALUE py,
  D3DVALUE pz,
  D3DVALUE nx,
  D3DVALUE ny,
  D3DVALUE nz,
  LPDIRECT3DRMVISUAL * lplpShadow
  );

Parameters

lpVisual

Address of the Direct3DRMVisual object that is casting the shadow.

lpLight

Address of the IDirect3DRMLight interface that is the light source.

px, py, and pz

Plane that the shadow is to be projected on.

nx, ny, and nz

Normal to the plane that the shadow is to be projected on.

lplpShadow

Address of a pointer to be initialized with a valid pointer to the shadow visual, if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateTexture

IDirect3DRM

Creates a texture from an image in memory.

HRESULT CreateTexture(
  LPD3DRMIMAGE lpImage,
  LPDIRECT3DRMTEXTURE* lplpD3DRMTexture
  );

Parameters

lpImage

Address of a D3DRMIMAGE structure describing the source for the texture.

lplpD3DRMTexture

Address that will be filled with a pointer to an IDirect3DRMTexture interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

The memory associated with the image is used each time the texture is rendered, rather than the memory being copied into the Direct3D Retained Mode buffers. This allows the image to be used both as a rendering target and as a texture.

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IDirect3DRM::CreateTextureFromSurface

IDirect3DRM

Creates a texture from a specified DirectDraw surface.

HRESULT CreateTextureFromSurface(
  LPDIRECTDRAWSURFACE lpDDS,
  LPDIRECT3DRMTEXTURE * lplpD3DRMTexture
  );

Parameters

lpDDS

Address of the DirectDrawSurface object containing the texture.

lplpD3DRMTexture

Address that will be filled with a pointer to an IDirect3DRMTexture interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateUserVisual

IDirect3DRM

Creates an application-defined visual object, which can then be added to a scene and rendered by using an application-defined handler.

HRESULT CreateUserVisual(
  D3DRMUSERVISUALCALLBACK fn,
  LPVOID lpArg,
  LPDIRECT3DRMUSERVISUAL * lplpD3DRMUV
  );

Parameters

fn

Callback function that is D3DRMUSERVISUALCALLBACK application-defined.

lpArg

Address of application-defined data passed to the callback function.

lplpD3DRMUV

Address that will be filled with a pointer to an IDirect3DRMUserVisual interface if the call succeeds.

Return Values

Should return D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::CreateViewport

IDirect3DRM

Creates a viewport on a device with device coordinates (dwXPos, dwYPos) to (dwXPos + dwWidth, dwYPos + dwHeight).

HRESULT CreateViewport(
  LPDIRECT3DRMDEVICE lpDev,
  LPDIRECT3DRMFRAME lpCamera,
  DWORD dwXPos,
  DWORD dwYPos,
  DWORD dwWidth,
  DWORD dwHeight,
  LPDIRECT3DRMVIEWPORT* lplpD3DRMViewport
  );

Parameters

lpDev

Device on which the viewport is to be created.

lpCamera

Frame that describes the position and direction of the view.

dwXPos, dwYPos, dwWidth, and dwHeight

Position and size of the viewport, in device coordinates. The viewport size cannot be larger than the physical device or the method will fail.

lplpD3DRMViewport

Address that will be filled with a pointer to an IDirect3DRMViewport interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. If the viewport size is larger than the physical device, returns D3DRMERR_BADVALUE. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

The viewport displays objects in the scene that contains the camera, with the view direction and up vector taken from the camera. The viewport size cannot be larger than the physical device.

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IDirect3DRM::CreateWrap

IDirect3DRM

Creates a wrapping function that can be used to assign texture coordinates to faces and meshes. The vector [ox oy oz] gives the origin of the wrap, [dx dy dz] gives its z-axis, and [ux uy uz] gives its y-axis. The 2-D vectors [ou ov] and [su sv] give an origin and scale factor in the texture applied to the result of the wrapping function.

HRESULT CreateWrap(
  D3DRMWRAPTYPE type,
  LPDIRECT3DRMFRAME lpRef,
  D3DVALUE ox,
  D3DVALUE oy,
  D3DVALUE oz,
  D3DVALUE dx,
  D3DVALUE dy,
  D3DVALUE dz,
  D3DVALUE ux,
  D3DVALUE uy,
  D3DVALUE uz,
  D3DVALUE ou,
  D3DVALUE ov,
  D3DVALUE su,
  D3DVALUE sv,
  LPDIRECT3DRMWRAP* lplpD3DRMWrap
  );

Parameters

type

One of the members of the D3DRMWRAPTYPE enumerated type.

lpRef

Reference frame for the wrap.

ox, oy, and oz

Origin of the wrap.

dx, dy, and dz

Z-axis of the wrap.

ux, uy, and uz

Y-axis of the wrap.

ou and ov

Origin in the texture.

su and sv

Scale factor in the texture.

lplpD3DRMWrap

Address that will be filled with a pointer to an IDirect3DRMWrap interface if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

See Also

IDirect3DRMWrap

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IDirect3DRM::EnumerateObjects

IDirect3DRM

Uses the callback function specified by the func parameter on each of the active Direct3DRM objects.

HRESULT EnumerateObjects(
  D3DRMOBJECTCALLBACK func,
  LPVOID lpArg
  );

Parameters

func

Application-defined D3DRMOBJECTCALLBACK callback function to be used with each Direct3DRMObject object and the application-defined argument.

lpArg

Address of application-defined data passed to the callback function.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::GetDevices

IDirect3DRM

Returns all the Direct3DRM devices that have been created in the system.

HRESULT GetDevices(
  LPDIRECT3DRMDEVICEARRAY* lplpDevArray
  );

Parameters

lplpDevArray

Address of a pointer that will be filled with the resulting array of Direct3DRM devices. For information about the Direct3DRMDeviceArray object, see the IDirect3DRMDeviceArray interface.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

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IDirect3DRM::GetNamedObject

IDirect3DRM

Finds a Direct3DRMObject given the Direct3DRMObject name.

HRESULT GetNamedObject(
  const char * lpName,
  LPDIRECT3DRMOBJECT* lplpD3DRMObject
  );

Parameters

lpName

Name of the object to be searched for.

lplpD3DRMObject

Address of a pointer to be initialized with a valid Direct3DRMObject pointer if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

If the system does not find an object with the name specified in the lpName parameter, this method returns D3DRM_OK, but the lplpD3DRMObject parameter is NULL.

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IDirect3DRM::GetSearchPath

IDirect3DRM

Returns the current search path. For Windows, the path is a list of directories separated by semicolons (;).

HRESULT GetSearchPath(
  DWORD * lpdwSize,
  LPSTR lpszPath
  );

Parameters

lpdwSize

Pointer to a DWORD. Should contain the length of lpszPath when GetSearchPath is used. On return, contains the length of the string in lpszPath containing the current search path. This parameter cannot be NULL.

lpszPath

A pointer to a null-terminated string specifying the search path. If lpszPath equals NULL when GetSearchPath is used, the method returns the length of the current string in the location pointed to by the lpdwSize parameter.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

See Also

IDirect3DRM::SetSearchPath

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IDirect3DRM::Load

IDirect3DRM

Loads an object.

HRESULT Load(
  LPVOID lpvObjSource,
  LPVOID lpvObjID,
  LPIID * lplpGUIDs,
  DWORD dwcGUIDs,
  D3DRMLOADOPTIONS d3drmLOFlags,
  D3DRMLOADCALLBACK d3drmLoadProc,
  LPVOID lpArgLP,
  D3DRMLOADTEXTURECALLBACK d3drmLoadTextureProc,
  LPVOID lpArgLTP,
  LPDIRECT3DRMFRAME lpParentFrame
  );

Parameters

lpvObjSource

Source for the object to be loaded. This source can be a file, resource, memory block, or stream, depending on the source flags specified in the d3drmLOFlags parameter.

lpvObjID

Object name or position to be loaded. The use of this parameter depends on the identifier flags specified in the d3drmLOFlags parameter. If the D3DRMLOAD_BYPOSITION flag is specified, this parameter is a pointer to a DWORD value that gives the object's order in the file. This parameter can be NULL.

lplpGUIDs

Address of an array of interface identifiers to be loaded. For example, if this parameter is a two-element array containing IID_IDirect3DRMMeshBuilder and IID_IDirect3DRMAnimationSet, this method loads all the animation sets and mesh-builder objects. Possible GUIDs must be one or more of the following: IID_IDirect3DRMMeshBuilder, IID_IDirect3DRMAnimationSet, IID_IDirect3DRMAnimation, and IID_IDirect3DRMFrame.

dwcGUIDs

Number of elements specified in the lplpGUIDs parameter.

d3drmLOFlags

Value of the D3DRMLOADOPTIONS type describing the load options.

d3drmLoadProc

A D3DRMLOADCALLBACK callback function used when the system reads the specified object.

lpArgLP

Address of application-defined data passed to the D3DRMLOADCALLBACK callback function.

d3drmLoadTextureProc

A D3DRMLOADTEXTURECALLBACK callback function used to load any textures used by an object that require special formatting. This parameter can be NULL.

lpArgLTP

Address of application-defined data passed to the D3DRMLOADTEXTURECALLBACK callback function.

lpParentFrame

Address of a parent Direct3DRMFrame object. This argument only affects the loading of animation sets. When an animation that is loaded from an .x file references an unparented frame in the .x file, the unparented frame's parent is set to the parent frame at lpParentFrame. However, if you call Load to load any frames in the .x file, the parent frame at lpParentFrame will not be used as the parent frame for frames in the .x file with no parent. That is, lpParentFrame is used only when you load animation sets. This value of lpParentFrame can be NULL.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

This method allows great flexibility in loading objects from Microsoft® DirectX® files. Here is an example of how to use it:

#include <windows.h>
#include <stdio.h>
#include <initguid.h>
#include <d3drm.h>

LPDIRECT3DRM d3dApi;

int totalMesh = 0, totalAnim = 0, totalFrames = 0;

HRESULT loadTexture(LPSTR name, LPVOID lpArg, LPDIRECT3DRMTEXTURE *tex)
{
	return d3dApi->lpVtbl->LoadTexture(d3dApi, name, tex);
}

void loadCallback(LPDIRECT3DRMOBJECT lpObject, REFIID objGuid, LPVOID lpArg)
{
	if (IsEqualIID(objGuid, &IID_IDirect3DRMFrame)) {
		totalFrames ++;
		return;
	}

	if (IsEqualIID(objGuid, &IID_IDirect3DRMAnimationSet)) {
		totalAnim ++;
		return;
	}

	if (IsEqualIID(objGuid, &IID_IDirect3DRMMeshBuilder)) {
		totalMesh ++;
		return;
	}

	return;
}


BOOL loadObjects(LPSTR filename)
{
	LPGUID guids[] = { (LPGUID)&IID_IDirect3DRMMeshBuilder,
		(LPGUID)&IID_IDirect3DRMAnimationSet,
		(LPGUID)&IID_IDirect3DRMFrame };

	/* Tell the loader which objects you're interested in */

	if (FAILED(d3dApi->lpVtbl->Load(d3dApi, filename, NULL, 
			guids, 3, D3DRMLOAD_FROMFILE,
			loadCallback, NULL, loadTexture, NULL, NULL)))
		return FALSE;

	printf("Total Frames loaded = %d\n", totalFrames);
	printf("Total Animation Sets loaded = %d\n", totalAnim);
	printf("Total Meshbuilders loaded = %d\n", totalMesh);

	return TRUE;
}

int main(int argc, char **argv)
{

	if (FAILED(Direct3DRMCreate(&d3dApi)))
		return FALSE;

	if (argc != 2) {
		fprintf(stderr, "usage: %s filename\n", argv[0]);
		return FALSE;
	}

	if (!loadObjects(argv[1])) return FALSE;
	
  return(0);
}

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IDirect3DRM::LoadTexture

IDirect3DRM

Loads a texture from the specified file. This texture can have 8, 24, or 32 bits-per-pixel, and it should be in either the Windows bitmap (.bmp) or Portable Pixmap (.ppm) P6 format.

HRESULT LoadTexture(
  const char * lpFileName,
  LPDIRECT3DRMTEXTURE* lplpD3DRMTexture
  );

Parameters

lpFileName

Name of the required .bmp or .ppm file.

lplpD3DRMTexture

Address of a pointer to be initialized with a valid Direct3DRMTexture pointer if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

LoadTexture checks whether the texture is in .bmp or .ppm format, which are the formats it can load. If you want to load other formats, you can add code to the callback to load the image into a D3DRMIMAGE structure and then use IDirect3DRM::CreateTexture.

If you write your own texture callback, the LoadTexture call in the texture callback does not take a reference to the texture. For example:

HRESULT loadTextures(char *name, void *arg, LPDIRECT3DRMTEXTURE *tex)
{
    return lpD3DRM->LoadTexture(name, tex);
}

In this sample, no reference is taken for tex. If you want to keep a reference to each texture loaded by your texture callback, you should AddRef the texture. For example:

LPDIRECT3DRMTEXTURE *texarray;

HRESULT loadTextures(char *name, void *arg, LPDIRECT3DRMTEXTURE *tex)
{
	if (FAILED(lpD3DRM->LoadTexture(name, tex)) {
		return NULL;
	}

	texArray[current++] = tex;
	tex->AddRef();

	return tex;
}

---

IDirect3DRM::LoadTextureFromResource

IDirect3DRM

Loads a texture from a specified resource.

HRESULT LoadTextureFromResource(
  HRSRC rs,
  LPDIRECT3DRMTEXTURE * lplpD3DRMTexture
  );

Parameters

rs

Handle of the resource.

lplpD3DRMTexture

Address of a pointer to be initialized with a valid Direct3DRMTexture object if the call succeeds.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

---

IDirect3DRM::SetDefaultTextureColors

IDirect3DRM

Sets the default colors to be used for a Direct3DRMTexture object.

HRESULT SetDefaultTextureColors(
  DWORD dwColors
  );

Parameters

dwColors

Number of colors.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

This method affects the texture colors only when it is used before the IDirect3DRM::CreateTexture method; it has no effect on textures that have already been created.

---

IDirect3DRM::SetDefaultTextureShades

IDirect3DRM

Sets the default shades to be used for an Direct3DRMTexture object.

HRESULT SetDefaultTextureShades(
  DWORD dwShades
  );

Parameters

dwShades

Number of shades.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

This method affects the texture shades only when it is used before the IDirect3DRM::CreateTexture method; it has no effect on textures that have already been created.

---

IDirect3DRM::SetSearchPath

IDirect3DRM

Sets the current file search path from a list of directories. For Windows, the path should be a list of directories separated by semicolons (;).

HRESULT SetSearchPath(
  LPCSTR lpPath
  );

Parameters

lpPath

Address of a null-terminated string specifying the path to set as the current search path.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

The default search path is taken from the value of the D3DPATH environment variable. If this is not set, the search path will be empty. When opening a file, the system first looks for the file in the current working directory and then checks every directory in the search path.

See Also

IDirect3DRM::GetSearchPath

---

IDirect3DRM::Tick

IDirect3DRM

Performs the Direct3DRM system heartbeat. When this method is used, the positions of all moving frames are updated according to their current motion attributes, the scene is rendered to the current device, and relevant callback functions are used at their appropriate times. Control is returned when the rendering cycle is complete.

HRESULT Tick(
  D3DVALUE d3dvalTick
  );

Parameters

d3dvalTick

Velocity and rotation step for the IDirect3DRMFrame::SetRotation and IDirect3DRMFrame::SetVelocity methods.

Return Values

Returns D3DRM_OK if successful, or an error otherwise. For a list of possible errors, see Direct3D Retained Mode Return Values.

Remarks

You can implement this method by using other Retained Mode methods to allow more flexibility in rendering a scene.

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