BitBlt

[wires]

Is there another function similar to this that can draw colored boxes?

I've had a change of plans with my project, and instead of pictures I think I might just want to use colors. :)

[rabbit]

http://www.codeproject.com/bitmap/rplcolor.asp

[wires]

When I wrote this function my problem was to replace one color by an other on transparent bitmaps. My images were resources bitmaps, which I store in an ImageList for easy transparency.

From the title and first paragraph it says replacing a color.  I don't think this will allow me to draw a square and then color it. :/

[rabbit]

Draw the square in black and change its color.  Durrr.

[wires]

Bleh, good idea, I'll try that. :)

[MyndFyre]

Or just....

DrawRectangle!

http://windowssdk.msdn.microsoft.com/en-us/library/ms534038(VS.80).aspx

The following code assumes you know how to include the GDI+ headers, are using the flat C API, can figure out how to check the status variable, and have the HDC as hDC, int variables x, y, width, and height, and ARGB values foreColor and backColor.

Code Select Expand


GpGraphics* gfx;
GpStatus status = GdipCreateFromHDC(hDC, &gfx);
// check status

// create line and fill brushes
GpSolidFill* foreBrush, fillBrush;
status = GdipCreateSolidFill(foreColor, &foreBrush);
// check status
status = GdipCreateSolidFill(backColor, &fillBrush);
// check status

// draw the fill
status = GdipFillRectangleI(gfx, fillBrush, x, y, width, height);
// check status
status = GdipDrawRectangleI(gfx, foreBrush, x, y, width, height);
// check status


I highly recommend learning GDI+.  It is a very robust system, and very slick in .NET.  ;)

[wires]

I'll look into that, looks like its what I want. :)

[wires]

This works.  Thanks for the help. :)

Code Select Expand


    With lpRect
        .Left = 0
        .Top = 0
        .Right = 50
        .Bottom = 50
    End With

    hbrush = CreateSolidBrush(vbBlack)
    Call FillRect(Picture1.hdc, lpRect, hBrush)


[MyndFyre]

Oh, didn't know you were using VB.  :P