Harold and all, I built XWin from source and debugged with gdb, and in that way I was able to track down the bug. It is due to my visual being 24bpp. It does not occur if it is changed to 16bpp. 32bpp is not available, but I am confident everything would work in that case.
Here is what happens: - winScaleXBitmapToWindows is called. The pixmap passed has height 42, width 48 and bitsPerPixel 24 - effXBPP is 24, xStride is 144 (48*(24/8)) - iconData is allocated as an array of 144*42 bytes - then, miGetImage is called. Here the line linelength = PixmapBytePad(w, depth); is executed with w=48 and depth=24. As a result, linelength is 192 (48*4), not 144 (48*3). - in the following for cycle, pDst (initialized as iconData) is incremented by linelength(=192) each time. Soon the pointer overflows the allocated bounds, causing the crash. It seems that handling of 24-bit display is broken. Maybe winScaleXBitmapToWindows should use PixmapBytePad to calculate xStride, but I'm only guessing as I'm not an expert. Regards, Fabrizio >I then compiled VICE (http://www.viceteam.org) and launched the program >x64 with option -display in order to make it use my Cygwin X server. If >the >server is launched with -multiwindow, it crashes __________________________________________________________________ ADSL Senza Canone 640Kbps: attivala entro il 31 marzo e avrai GRATIS il costo di adesione, quello di attivazione e il modem per tutto il 2004. E per i primi 3 mesi navighi a 1,5 euro l'ora! Affrettati! http://point.tiscali.it/adsl/prodotti/senzacanone/