Structures

This section contains information about the following structures used with DirectSetup:

• DIRECTXREGISTERAPP
• DSETUP_CB_UPGRADEINFO

Note  The memory for all DirectX structures must be initialized to zero before use. In addition, all structures that contain a dwSize member must set the member to the size of the structure, in bytes, before use. The following example from DirectDraw performs these tasks on a common structure, DDCAPS:

DDCAPS ddcaps; // Can't use this yet.
 
ZeroMemory(&ddcaps, sizeof(ddcaps));
ddcaps.dwSize = sizeof(ddcaps);
 
// Now the structure can be used.
.
.