X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/cfbe03c9c3ffecd6363dcc63e6fc27b8c6ed70aa..491b5be8305968871bc289453ed088a70c3de044:/src/xpm/readme.msw

diff --git a/src/xpm/readme.msw b/src/xpm/readme.msw
index 6e97bb5989..f6315256e9 100644
--- a/src/xpm/readme.msw
+++ b/src/xpm/readme.msw
@@ -5,9 +5,9 @@ README.MSW	hedu@cul-ipn.uni-kiel.de	5/94
 		
 Motivated by the wxWindows library, which is a (freely available) toolkit
 for developing multi-platform, graphical applications from the same body 
-of C++ code,I wanted to have XPM pixmaps for MS-windows. Instead of rewriting 
+of C++ code, I wanted to have XPM pixmaps for MS-windows. Instead of rewriting 
 a XPM-parser I managed to port the XPM-library-code to MS-windows.
-Thanks to Anaud Le Hors  this became a part of the official XPM-library.
+Thanks to Anaud Le Hors this became a part of the official XPM-library.
 
 Until now it's only used together with wxWindows. And even there it's more 
 a kind of beta. But it should be possible to run it as a simple libxpm.a 
@@ -57,7 +57,7 @@ Neither a special API for MSW nor a special MSW documentation other than this.
 
 INSTALLATION:
 There is not yet a makefile with it. Simply take all the *.c files
-into your project. 
+into your project except the files related to Pixmap operations: *P*.c.
 !!!You MUST set FOR_MSW on the preprocessor options!!!
 (You might uncomment NEED_STRCASECMP in xpm.h if it's in your lib)
 This should compile into libxpm.a. Good luck...
@@ -74,6 +74,50 @@ wxxpm, XPM support for wxWindows, the latest version is available at
 	
 Please contact me if you have suggestions, comments or problems!
 
+================================================================
+Some fixes and comments by Jan Wielemaker (jan@swi.psy.uva.nl),
+Oct 24, 1996:
+
+	* Please try not to disturb me on this, XPM is not my
+	piece of cake.
+
+	* Hermann Dunkel has appearently moved in virtual space.
+
+Changes:
+
+	* I've used the xpm package under NT 4.0 and MSVC++ 4.2.
+
+	* I've made a big performance improvement in 
+	ParseAndPutPixels(), fixed creation of the mask in
+	SetColor() in create.c.  I looked into XCreateImage()
+	in simx.c, but commented out my improvement for reasons
+	you'll find there.  If you know what is going on, statement
+	(1) does not apply to you.
+
+Comments on installation:
+
+	* Donot include the to/from pixmap files into the project.
+	These are the ones containing a capital P somewhere in their
+	name.  You can also first include all, and then remove all
+	the files you get errors on :-)
+
+	* The DC that is requested should be a valid memory DC, thus
+	CreateCompatibleDC(NULL) provides a good generic one, but
+	GetDC(NULL) doesn't!  This costed me some time.
+
+	* The real difficulty is using the mask, mostly due to the
+	bad documentation.  If 95 or NT is your target, use:
+
+	MaskBlt(context.hdc,	// Destination DC
+		x, y, w, h,	// Destination area
+		mhdc,		// Memory DC with the image selected
+		sx, sy,		// Source X,Y
+		msk,		// HBITMAP of the mask
+		sx, sy,		// Mask X,Y
+		MAKEROP4(SRCPAINT, SRCCOPY));	// The magic op code.
+================================================================
+
+
 --
    ////|\\\\   \\\\\\  Hermann Dunkel
      O   O     //////  IPN Uni Kiel, Germany