converting 8-bit color -> 4-bit gray problem

[Todd Walk]

I've got most of my app up and running in 8-bit color.
I've started to convert it to 4-bit grayscale.

It compiles fine, but when I run it on the emulator with
devices that should have a 4-bit display, I get a 1-bit
output.

Any ideas?

I'm using the code below to try to force it into the correct mode.
(widthP, etc are globals.)

 UInt32 tmpdepthP;
 Boolean tmpenableColorP;
 WinScreenMode(winScreenModeGetSupportedDepths,NULL,NULL,&tmpdepthP,NULL);
 WinScreenMode(winScreenModeGet,&widthP,&heightP,&depthP,&enableColorP);
 if(tmpdepthP>=128) //color
 {
  tmpdepthP=8;
  tmpenableColorP=true;
  WinScreenMode(winScreenModeSet,NULL,NULL,&tmpdepthP,&tmpenableColorP);
 }
 else //16 shade gray
 {
  tmpdepthP=4;
  WinScreenMode(winScreenModeSet,NULL,NULL,&tmpdepthP,NULL);
 }




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