WM_PRINT

The WM_PRINT message is sent to a window to request that it draw itself in the specified device context, most commonly in a printer device context.

WM_PRINT

hdc = (HDC) wParam;

uFlags = lParam;

Parameters

hdc

Identifies the device context to draw in.

uFlags

Specifies the drawing options. This parameter can be one or more of these flags:

Value	Meaning
PRF_CHECKVISIBLE	Draw the window only if it is visible.
PRF_CHILDREN	Draw all visible children windows.
PRF_CLIENT	Draw the client area of the window.
PRF_ERASEBKGND	Erase the background before drawing the window.
PRF_NONCLIENT	Draw the nonclient area of the window.
PRF_OWNED	Draw all owned windows.

Remarks

The DefWindowProc function processes this message based on which drawing option is specified: if PRF_CHECKVISIBLE is specified and the window is not visible, do nothing, if PRF_NONCLIENT is specified, draw the nonclient area in the given device context, if PRF_ERASEBKGND is specified, send the window a WM_ERASEBKGND message, if PRF_PRINTCLIENT is specified, send the window a WM_PRINTCLIENT message, if PRF_PRINTCHILDREN is set, send each visible child window a WM_PRINT message, if PRF_OWNED is set, send each visible owned window a WM_PRINT message.

See Also

DefWindowProc, WM_ERASEBKGND, WM_PRINTCLIENT

Software for developers

Delphi Components
.Net Components
Software for Android Developers

More information resources

MegaDetailed.Net
Unix Manual Pages
Delphi Examples

Databases for Amazon shops developers

Amazon Categories Database
Browse Nodes Database