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| Title | Use standard system images (min, max, restore, help, scroll arrows, etc.) to make a button |
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| Keywords | frame, draw frame, buttons, help, close, min, max, restore, scroll |
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| Categories | Graphics, Windows |
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Thanks to Neil Crosby.
Use the DrawFrameControl API function. It takes as parameters a device context on which to draw, a RECT structure indicating where to draw, a frame image type, and a frame image state. The state may include a modifier indicating disabled, pushed, etc.
The DrawFrame subroutine shown in the following code wraps this API call.
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' Draw a frame control image.
Private Sub DrawFrame(ByVal hDC As Long, ByVal X As Long, _
ByVal Y As Long, ByVal wid As Long, ByVal hgt As Long, _
ByVal frame_type As Long, ByVal frame_state As Long, _
Optional ByVal frame_status As Long = 0)
Dim r As RECT
With r
.Left = X
.Right = X + wid
.Top = Y
.Bottom = Y + hgt
End With
DrawFrameControl hDC, r, frame_type, frame_state Or _
frame_status
End Sub
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The program uses the following code to display appropriate up and down images when the user clicks on the button.
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Private Sub btnControl_MouseDown(Button As Integer, Shift _
As Integer, X As Single, Y As Single)
btnControl.Picture = LoadPicture()
DrawFrame btnControl.hDC, 0, 0, 16, 14, DFC_CAPTION, _
DFCS_CAPTIONCLOSE, DFCS_CHECKED
End Sub
Private Sub btnControl_MouseUp(Button As Integer, Shift As _
Integer, X As Single, Y As Single)
btnControl.Picture = LoadPicture()
DrawFrame btnControl.hDC, 0, 0, 16, 14, DFC_CAPTION, _
DFCS_CAPTIONCLOSE
End Sub
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