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author | rjohnson <rjohnson> | 1998-04-01 09:37:39 (GMT) |
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committer | rjohnson <rjohnson> | 1998-04-01 09:37:39 (GMT) |
commit | 13242623d2ff3ea02ab6a62bfb48a7dbb5c27e22 (patch) | |
tree | 3100714738a7941b590efee466a774862f9671c3 /doc/GetPixmap.3 | |
parent | e4ab1102029f9ac557ff190bfb9d34408340f345 (diff) | |
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diff --git a/doc/GetPixmap.3 b/doc/GetPixmap.3 new file mode 100644 index 0000000..f5d030e --- /dev/null +++ b/doc/GetPixmap.3 @@ -0,0 +1,56 @@ +'\" +'\" Copyright (c) 1990 The Regents of the University of California. +'\" Copyright (c) 1994-1996 Sun Microsystems, Inc. +'\" +'\" See the file "license.terms" for information on usage and redistribution +'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. +'\" +'\" SCCS: @(#) GetPixmap.3 1.7 96/03/26 18:11:47 +'\" +.so man.macros +.TH Tk_GetPixmap 3 4.0 Tk "Tk Library Procedures" +.BS +.SH NAME +Tk_GetPixmap, Tk_FreePixmap \- allocate and free pixmaps +.SH SYNOPSIS +.nf +\fB#include <tk.h>\fR +.sp +Pixmap +\fBTk_GetPixmap(\fIdisplay, d, width, height, depth\fB)\fR +.sp +\fBTk_FreePixmap(\fIdisplay, pixmap\fB)\fR +.SH ARGUMENTS +.AS "Drawable" *pixelPtr +.AP Display *display in +X display for the pixmap. +.AP Drawable d in +Pixmap or window where the new pixmap will be used for drawing. +.AP "int" width in +Width of pixmap. +.AP "int" height in +Height of pixmap. +.AP "int" depth in +Number of bits per pixel in pixmap. +.AP Pixmap pixmap in +Pixmap to destroy. +.BE + +.SH DESCRIPTION +.PP +These procedures are identical to the Xlib procedures \fBXCreatePixmap\fR +and \fBXFreePixmap\fR, except that they have extra code to manage X +resource identifiers so that identifiers for deleted pixmaps can be +reused in the future. +It is important for Tk applications to use these procedures rather +than \fBXCreatePixmap\fR and \fBXFreePixmap\fR; otherwise long-running +applications may run out of resource identifiers. +.PP +\fBTk_GetPixmap\fR creates a pixmap suitable for drawing in \fId\fR, +with dimensions given by \fIwidth\fR, \fIheight\fR, and \fIdepth\fR, +and returns its identifier. +\fBTk_FreePixmap\fR destroys the pixmap given by \fIpixmap\fR and makes +its resource identifier available for reuse. + +.SH KEYWORDS +pixmap, resource identifier |