Loading an image to Canvas

[cyprus106]

How do I load an image to a Forms' Canvas? Does anyone have any Sample code for this?

Thanks, Cyprus

 

[bNasty]

What kind of form (SDI or MDI)? If your form/application is SDI, you have to monitor win-message WM_ERASEBGRND (or something like that, check WIN SDK help ,anyway, it is the message sent by Windows telling you to erase background of your window. This is where you can blit your image on form's Canvas instead of erasing it. In case of MDI-parent form, this wont work, because VCL adds one more frame over your window, so you can't draw on form. This is a bit tricky, but you can find a good explanation and sample code on borland.com (cpp-faq)

 

[cyprus106]

um, no I want to display an image on the forms canvas in BCB5. All it takes is some simple code on the forms part, but I can't remember it and I would like to know if anyone else who can remember it could help me. Cyprus

 

[Pavlo]

Greetinx!

Each TCanvas has method of BrushCopy which can copy bitmap onto itself. So, you can try to make this copying either on WM_ERASEBKGND or WM_PAINT has come.

Happy programming!))