Linux Manuals session 3

XCreateWindowEvent – CreateNotify event structure StructuresThe structure for CreateNotify events contains: typedef struct {         int type;       /* CreateNotify */         unsigned long serial;   /* # of last request processed by server */         Bool send_event;        /* true if this came from a SendEvent request */         Display *display;       /* Display the event was read from */         Window parent;  /* parent of the window */         Window window;  /* window id of window created */         int x, y;       /* window location */         int…

XCreateWindow, XCreateSimpleWindow, XSetWindowAttributes – create windows and window attributes structure SyntaxWindow XCreateWindow(Display *display, Window parent, int x, int y, unsigned int width, unsigned int height, unsigned int border_width, int depth, unsigned int class, Visual *visual, unsigned long valuemask, XSetWindowAttributes *attributes); Window XCreateSimpleWindow(Display *display, Window parent, int x, int y, unsigned int width, unsigned int height,…

XCreateWindow, XCreateSimpleWindow, XSetWindowAttributes – create windows and window attributes structure SyntaxWindow XCreateWindow(Display *display, Window parent, int x, int y, unsigned int width, unsigned int height, unsigned int border_width, int depth, unsigned int class, Visual *visual, unsigned long valuemask, XSetWindowAttributes *attributes); Window XCreateSimpleWindow(Display *display, Window parent, int x, int y, unsigned int width, unsigned int height,…

XCreateRegion, XSetRegion, XDestroyRegion – create or destroy regions SyntaxRegion XCreateRegion(void); int XSetRegion(Display *display, GC gc, Region r); int XDestroyRegion(Region r);Argumentsdisplay Specifies the connection to the X server. gc Specifies the GC. r Specifies the region.DescriptionThe XCreateRegion function creates a new empty region. The XSetRegion function sets the clip-mask in the GC to the specified region….

XReadBitmapFile, XReadBitmapFileData, XWriteBitmapFile, XCreatePixmapFromBitmapData, XCreateBitmapFromData – manipulate bitmaps Syntaxint XReadBitmapFile(Display *display, Drawable d, char *filename, unsigned int *width_return, unsigned int *height_return, Pixmap *bitmap_return, int *x_hot_return, int *y_hot_return); int XReadBitmapFileData(char *filename, unsigned int *width_return, unsigned int *height_return, unsigned char *data_return, int *x_hot_return, int *y_hot_return); int XWriteBitmapFile(Display *display, char *filename, Pixmap bitmap, unsigned int width, unsigned int…

XCreateFontCursor, XCreatePixmapCursor, XCreateGlyphCursor – create cursors Syntax#include <X11/cursorfont.h> Cursor XCreateFontCursor(Display *display, unsigned int shape); Cursor XCreatePixmapCursor(Display *display, Pixmap source, Pixmap mask, XColor *foreground_color, XColor *background_color, unsigned int x, unsigned int y); Cursor XCreateGlyphCursor(Display *display, Font source_font, Font mask_font, unsigned int source_char, unsigned int mask_char, XColor *foreground_color, XColor *background_color);Argumentsbackground_color Specifies the RGB values for the background…

XCreatePixmap, XFreePixmap – create or destroy pixmaps SyntaxPixmap XCreatePixmap(Display *display, Drawable d, unsigned int width, unsigned int height, unsigned int depth); int XFreePixmap(Display *display, Pixmap pixmap);Argumentsd Specifies which screen the pixmap is created on. depth Specifies the depth of the pixmap. display Specifies the connection to the X server. pixmap Specifies the pixmap. width height…

XCreateOC, XDestroyOC, XSetOCValues, XGetOCValues, XOMOfOC – create output contexts SyntaxXOC XCreateOC(XOM om); void XDestroyOC(XOC oc); char * XSetOCValues(XOC oc, …); char * XGetOCValues(XOC oc, …); XOM XOMOfOC(XOC oc);Argumentsoc Specifies the output context. om Specifies the output method. … Specifies the variable length argument list to set or get XOC values.DescriptionThe XCreateOC function creates an output…

XInitImage, XCreateImage, XGetPixel, XPutPixel, XSubImage, XAddPixel, XDestroyImage – image utilities SyntaxStatus XInitImage(XImage *image); XImage *XCreateImage(Display *display, Visual *visual, unsigned int depth, int format, int offset, char *data, unsigned int width, unsigned int height, int bitmap_pad, int bytes_per_line); unsigned long XGetPixel(XImage *ximage, int x, int y); int XPutPixel(XImage *ximage, int x, int y, unsigned long pixel);…

XCreateIC, XDestroyIC, XIMOfIC – create, destroy, and obtain the input method of an input context SyntaxXIC XCreateIC(XIM im, …); void XDestroyIC(XIC ic); XIM XIMOfIC(XIC ic);Argumentsic Specifies the input context. im Specifies the input method. … Specifies the variable length argument list to set XIC values.DescriptionThe XCreateIC function creates a context within the specified input method….

XCreateFontCursor, XCreatePixmapCursor, XCreateGlyphCursor – create cursors Syntax#include <X11/cursorfont.h> Cursor XCreateFontCursor(Display *display, unsigned int shape); Cursor XCreatePixmapCursor(Display *display, Pixmap source, Pixmap mask, XColor *foreground_color, XColor *background_color, unsigned int x, unsigned int y); Cursor XCreateGlyphCursor(Display *display, Font source_font, Font mask_font, unsigned int source_char, unsigned int mask_char, XColor *foreground_color, XColor *background_color);Argumentsbackground_color Specifies the RGB values for the background…

XCreateGC, XCopyGC, XChangeGC, XGetGCValues, XFreeGC, XGContextFromGC, XGCValues – create or free graphics contexts and graphics context structure SyntaxGC XCreateGC(Display *display, Drawable d, unsigned long valuemask, XGCValues *values); int XCopyGC(Display *display, GC src, unsigned long valuemask, GC dest); int XChangeGC(Display *display, GC gc, unsigned long valuemask, XGCValues *values); Status XGetGCValues(Display *display, GC gc, unsigned long valuemask,…

XCreateFontSet, XFreeFontSet – create and free an international text drawing font set SyntaxXFontSet XCreateFontSet(Display *display, char *base_font_name_list, char ***missing_charset_list_return, int *missing_charset_count_return, char **def_string_return); void XFreeFontSet(Display *display, XFontSet font_set);Argumentsdisplay Specifies the connection to the X server. base_font_name_list Specifies the base font names. def_string_return Returns the string drawn for missing charsets. font_set Specifies the font set. missing_charset_count_return…

XCreateFontCursor, XCreatePixmapCursor, XCreateGlyphCursor – create cursors Syntax#include <X11/cursorfont.h> Cursor XCreateFontCursor(Display *display, unsigned int shape); Cursor XCreatePixmapCursor(Display *display, Pixmap source, Pixmap mask, XColor *foreground_color, XColor *background_color, unsigned int x, unsigned int y); Cursor XCreateGlyphCursor(Display *display, Font source_font, Font mask_font, unsigned int source_char, unsigned int mask_char, XColor *foreground_color, XColor *background_color);Argumentsbackground_color Specifies the RGB values for the background…

XCreateColormap, XCopyColormapAndFree, XFreeColormap, XColor – create, copy, or destroy colormaps and color structure SyntaxColormap XCreateColormap(Display *display, Window w, Visual *visual, int alloc); Colormap XCopyColormapAndFree(Display *display, Colormap colormap); int XFreeColormap(Display *display, Colormap colormap);Argumentsalloc Specifies the colormap entries to be allocated. You can pass AllocNone or AllocAll. colormap Specifies the colormap that you want to create, copy,…

XReadBitmapFile, XReadBitmapFileData, XWriteBitmapFile, XCreatePixmapFromBitmapData, XCreateBitmapFromData – manipulate bitmaps Syntaxint XReadBitmapFile(Display *display, Drawable d, char *filename, unsigned int *width_return, unsigned int *height_return, Pixmap *bitmap_return, int *x_hot_return, int *y_hot_return); int XReadBitmapFileData(char *filename, unsigned int *width_return, unsigned int *height_return, unsigned char *data_return, int *x_hot_return, int *y_hot_return); int XWriteBitmapFile(Display *display, char *filename, Pixmap bitmap, unsigned int width, unsigned int…

XCopyArea, XCopyPlane – copy areas Syntaxint XCopyArea(Display *display, Drawable src, Drawable dest, GC gc, int src_x, int src_y, unsigned int width, unsigned height, int dest_x, int dest_y); int XCopyPlane(Display *display, Drawable src, Drawable dest, GC gc, int src_x, int src_y, unsigned width, int height, int dest_x, int dest_y, unsigned long plane);Argumentsdest_x dest_y Specify the x…

XCreateGC, XCopyGC, XChangeGC, XGetGCValues, XFreeGC, XGContextFromGC, XGCValues – create or free graphics contexts and graphics context structure SyntaxGC XCreateGC(Display *display, Drawable d, unsigned long valuemask, XGCValues *values); int XCopyGC(Display *display, GC src, unsigned long valuemask, GC dest); int XChangeGC(Display *display, GC gc, unsigned long valuemask, XGCValues *values); Status XGetGCValues(Display *display, GC gc, unsigned long valuemask,…

XCreateColormap, XCopyColormapAndFree, XFreeColormap, XColor – create, copy, or destroy colormaps and color structure SyntaxColormap XCreateColormap(Display *display, Window w, Visual *visual, int alloc); Colormap XCopyColormapAndFree(Display *display, Colormap colormap); int XFreeColormap(Display *display, Colormap colormap);Argumentsalloc Specifies the colormap entries to be allocated. You can pass AllocNone or AllocAll. colormap Specifies the colormap that you want to create, copy,…

XCopyArea, XCopyPlane – copy areas Syntaxint XCopyArea(Display *display, Drawable src, Drawable dest, GC gc, int src_x, int src_y, unsigned int width, unsigned height, int dest_x, int dest_y); int XCopyPlane(Display *display, Drawable src, Drawable dest, GC gc, int src_x, int src_y, unsigned width, int height, int dest_x, int dest_y, unsigned long plane);Argumentsdest_x dest_y Specify the x…