heath@ncrcae.Columbia.NCR.COM (Robert Heath) (03/05/91)
How does one read in and display the contents of a .ICO file within a Win app ? (I realize the normal way is to compile in a .ICO as a resource via "rc".) I want to be able to have the user specify which .ICO file to display at runtime. I can't seem to find out how to do this in the literature. Robert Heath
mike@wang.com (Mike Sullivan) (03/11/91)
heath@ncrcae.Columbia.NCR.COM (Robert Heath) writes: >How does one read in and display the contents of a .ICO file within >a Win app ? (I realize the normal way is to compile in a .ICO as a resource via >"rc".) I want to be able to have the user specify which .ICO file >to display at runtime. I can't seem to find out how to do this in >the literature. > Robert Heath Back when _I_ was a windows weenie I wrote a routine called IconLoad which took a filename. It opened the file, read a header ( which is defined in the literature ) determined whether it really was an icon and what size icon, and then read rest of the file into bitmaps. I also wrote IconDraw and IconMove. The other advantage that doing own routines gave me is that I was able to colorize them. DrawIcon always drew them in B&W for some reason. (IconMove allowed me to drag an Icon around on the screen. Performance was quite reasonable. Anyway the secret to drawing the Icon is to first draw the mask in the desired background color using BitBlt with SRCAND. Then draw the bits using the desired foreground color using BitBlt and SRCINVERT. -- ________________________ / __ \ | Michael J. Sullivan |ec.lec.tic adj Choosing | \ \ / /\ |\ | / ` | | Wang Laboratories Inc. |or consisting of what | \/ \/ /--\ | \| \__T | | mike@WANG.COM |appears to be the best \________________________/ | |from diverse sources.