Sorry I did not mentioned. This is only a partial
code with no compilation error and all the variable r
declared.
Bus error comes up when i complete drawing a line and
lifts the pen.
Thanks,
Nimesh.
Tim Charron wrote:
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I'm not sure about the bus error, but I did notice
that
"newAPI" seems unitialized if you're on an OS older
than 3.5, although it might be taken care of in the
declaration (which you did not provide).
-- Tim
nim bha wrote:
> Following code is giving Bus Error at bmp create
(last
> line). Any idea.
>
> I am using SDK 3.5 and GNU gcc for compiling
> application. Using Emulator for testing with
release
> ROM ( Palm OS 3.5-en-color.rom ) . Also I have
> install newest PilRC.
>
> With Code warrior this piece is perfectly fine.
>
> Thanx,
> Nimesh.
>
> ==============
> static BitmapPtr GetSigBitmap( RectangleType*
> theBoundsPtr )
> {
> WinHandle theWindowHandle ;
> Word theError ;
> BitmapPtr theBitmapPtr ;
> Word theRowBytes, theHeight ;
> UInt32 romVersion ;
> UInt32 size = 0 ;
> UInt16 width, height ;
> WindowType *winP ;
> Err *errorP ;
> UInt32 sizeP = 0 ;
> UInt16 rowBytes ;
> UInt8 depth ;
>
> // First, free the previous bitmap if it
exists
> if (gBitmapPtr)
> {
> MemPtrFree( gBitmapPtr );
> gBitmapPtr = NULL;
> }
> theWindowHandle =
WinCreateOffscreenWindow(
> theBoundsPtr->extent.x,
>
theBoundsPtr->extent.y, genericFormat,
> &theError );
>
> if (!theError)
> {
> FtrGet(sysFtrCreator,
sysFtrNumROMVersion,
> &romVersion);
> if (romVersion >= version3_5)
> {
> RGBColorType rgb =
{0,0,0,0};
> drawIndex =
WinRGBToIndex(&rgb);
> newAPI = true;
> }
> // Now, copy the gadgets screen
rectangle into the
> new window. This will offset
> // the screen bits to (0, 0) in
the offscreen
> window.
>
> WinCopyRectangle( NULL,
theWindowHandle,
> theBoundsPtr, 0, 0, 0 );
>
> if (newAPI)
> {
> BitmapPtr winBmpP =
WinGetBitmap(theWindowHandle);
> ColorTableType *clrTableP
=
> BmpGetColortable(winBmpP);
> UInt8 depth =
winBmpP->pixelSize;
> WinHandle winH;
>
> // we create a bitmap and
then make a window to it
> so that we can
> // create a bitmap whose
depth does not match that
> of the screen
>
> theBitmapPtr =
BmpCreate(theBoundsPtr->extent.x,
> theBoundsPtr->extent.y, depth, clrTableP, errorP);
>
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