BUG: LOADIMAGE() or LOADIMAGE_W() Graphics Functions Can Fail

• Microsoft FORTRAN PowerStation for Windows 95 and Windows NT, version 4.0

SYMPTOMS

Using the LOADIMAGE() or LOADIMAGE_W() graphics functions to display a bitmap file (.bmp) having 256 or more colors or containing complex graphics images fails in a QuickWin or Standard Graphics application.

RESOLUTION

Either use bitmaps having no more than 256 colors or use less complex bitmap images.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Problem

1. Create a source file that contains the sample code listed below.

2. Copy any 256-color or greater bitmap file (.bmp) to the directory containing the sample code.

3. Modify the sample code to include the 256-color or greater bitmap file name in the LOADIMAGE_W() function.

4. Compile and run the application.

Sample Code

! Compile options needed: /MW

      include 'FGRAPH.FI'
      include 'FGRAPH.FD'
      integer*4 i
      i=LOADIMAGE_W('winnt256.bmp',0,0)
      if( i .ne. 0 ) print *, 'LoadImage failed'
      end