Help for beginner. XCreatePixmap

[aivils at latnet.lv]

Hi, Mike!

[aivils at zibens ~]$ man -k XFree
XFree                (3x)  - free client data
XFreeColormap [XCreateColormap] (3x)  - create, copy, or destroy colormaps and
color structure
XFreeColors [XAllocColor] (3x)  - allocate and free colors
XFreeCursor [XRecolorCursor] (3x)  - manipulate cursors
XFreeDeviceList [XListInputDevices] (3x)  - list available input devices
XFreeFont [XLoadFont] (3x)  - load or unload fonts and font metric structures
XFreeFontInfo [XListFonts] (3x)  - obtain or free font names and information
XFreeFontNames [XListFonts] (3x)  - obtain or free font names and information
XFreeFontPath [XSetFontPath] (3x)  - set, get, or free the font search path
XFreeFontSet [XCreateFontSet] (3x)  - create and free an international text
drawing font set
XFreeGC [XCreateGC]  (3x)  - create or free graphics contexts and graphics
context structure
XFreeModifierMap XModifierKeymap [XChangeKeyboardMapping] (3x)  - manipulate
keyboard encoding and keyboard encoding structure
XFreePixmap [XCreatePixmap] (3x)  - create or destroy pixmaps
XFreeStringList [XStringListToTextProperty] (3x)  - convert string lists and
text property structure


Please check out by yourself what lacks in your code ;o)

Aivils

Citēju mike <flame-mike at zeelandnet.nl>:

> Hi, all.
>
> When I create a lot of pixmaps I can't  freed memory,
> Wat I doe wrong?
>
> Before start program.
>
> mike at mike-desktop:~$ ps aux | grep /X11/X
> root      3708  6.0  2.0  12672  9152 tty7     Ss+  11:19   0:01
> /usr/bin/X11/X -dpi 100 -nolisten tcp -ld 0 -ls 0 -lf 0 -bs -su -br
> -maxbigreqsize 1
>
> After
> mike at mike-desktop:~$ ps aux | grep /X11/X
> root      3708  1.1  2.9  51984 13324 tty7     Ss+  11:19   0:02
> /usr/bin/X11/X -dpi 100 -nolisten tcp -ld 0 -ls 0 -lf 0 -bs -su -br
> -maxbigreqsize 1
>
>
>
>
> #include  <X11/cursorfont.h>
> #include <stdio.h>
> #include <X11/Xlib.h>
> #include <stdio.h>
>
>       Display *display;
>       Window  win1;
>       XSetWindowAttributes attributes;
>       XFontStruct *fontinfo;
>       GC gr_context1;
>       XArc arcs[10];
>       Pixmap pixmap, pix[1024];
>       Visual *visual;
>       int screen;
>       int depth;
>       int i;
>  main (argc, argv)
>  char   *argv[];
>  int     argc;
>  {
>       XGCValues gr_values;
>       XEvent event;
>
>       setbuf (stdout, NULL);
>       setbuf (stderr, NULL);
>       display = XOpenDisplay(NULL);
>       screen = DefaultScreen(display);
>       visual = DefaultVisual(display,screen);
>       depth  = DefaultDepth(display,screen);
>       attributes.background_pixel      = XWhitePixel(display,screen);
>       attributes.border_pixel          = XBlackPixel(display,screen);
>       attributes.override_redirect     = 0;
>
>       for(i=0;i<10;i++){
>              arcs[i].x = 100;arcs[i].y = 50;
>            arcs[i].width = 100;arcs[i].height = 50;
>       }
>       for(i=0;i<5;i++){
>            arcs[i].angle1 = 72*64*i;
>            arcs[i].angle2 = 35*64;
>       }
>       for(i=5;i<10;i++){
>            arcs[i].angle1 = 72*64*i + 36*64;
>            arcs[i].angle2 = 35*64;
>       }
>
>       win1= XCreateWindow(display, XRootWindow(display,screen),
>                    200,200, 300,200,5, depth, InputOutput, visual,
>                    CWBackPixel | CWBorderPixel |
> CWOverrideRedirect,&attributes);
>
>       XSelectInput(display,win1,ExposureMask | ButtonPressMask |
> KeyPressMask);
>       FILE *test;
>       test = fopen("test.pix", "w");
>       pixmap = XCreatePixmap(display,win1,200,100,depth);
>       for (i=0; i<1024; i++){
>          pix[i] = XCreatePixmap(display,win1,200,100,depth);
>          fprintf(test, "%lu\n", pix[i]);
>       }
>       fclose(test);
>       fontinfo = XLoadQueryFont(display,"6x10");
>       gr_values.font =   fontinfo->fid;
>       gr_values.function =   GXcopy;
>       gr_values.plane_mask = AllPlanes;
>       gr_values.foreground = BlackPixel(display,screen);
>       gr_values.background = WhitePixel(display,screen);
>       gr_context1=XCreateGC(display,win1,
>               GCFont | GCFunction | GCPlaneMask | GCForeground |
> GCBackground,
>               &gr_values);
>
>       XDefineCursor(display,win1,XCreateFontCursor(display,XC_heart));
>       XMapWindow(display,win1);
>
>       do{
>         XNextEvent(display,&event);
>         if (event.type == Expose){
>               draw_ellipse();
>               XCopyArea(display,win1,pixmap,gr_context1,50,25,200,100,0,0);
>               XSetFunction(display,gr_context1,GXinvert);
>
> XDrawImageString(display,pixmap,gr_context1,80,45,"pixmap",6);
>               XDrawImageString(display,pixmap,gr_context1,90,60,"copy",4);
>               XSetFunction(display,gr_context1,GXcopy);
>               XDrawString(display,win1,gr_context1,10,20,
>                   "Press a key in this window",26);
>         }
>       }while  (event.type !=KeyPress);
>
>       XCopyArea(display,pixmap,win1,gr_context1,0,0,200,100,100,125);
>       XDrawString(display,win1,gr_context1,10,32,
>                   "Now press a key to exit",23);
>       XFlush(display);
>
>       do{
>         XNextEvent(display,&event);
>       }while  (event.type !=KeyPress);
>
>       printf("closing display\n");
>       for (i=0; i<1024; i++) XFreePixmap(display, pix[i]);
>       XFreePixmap(display, pixmap);
>       XCloseDisplay(display);
>  }
>
>  draw_ellipse()
>  {
>       XSetArcMode(display,gr_context1,ArcPieSlice);
>       XFillArcs(display,win1,gr_context1,arcs,5);
>       XSetArcMode(display,gr_context1,ArcChord);
>       XFillArcs(display,win1,gr_context1,arcs+5,5);
>  }
>
>
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