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I try to draw something by use Pixmap and Drawing
area but I get some problem.
What is cause of problem? How can I fix it? Please tell me, thank you very much. Poblem is
1) Gdk-CRITICAL **: file gdkdraw.c: line 90
(gdk_draw_rectangle): assertion `gc != NULL' failed.
error 1) occur when I call this
function
gdk_draw_rectangle
(attr->proc_name, window1->yle->white_gc, TRUE, 0,
0,
(area->proc_name)->allocation.width, (area->proc_name)->allocation.height); 2) Gdk-CRITICAL **: file gdkgc.c: line 51
(gdk_gc_new_with_values): assertion `window != NULL' failed.
3) Gdk-CRITICAL **: file gdkgc.c: line 456
(gdk_gc_set_foreground): assertion `gc != NULL' failed.
error 2) 3) occur when I call this
functions
gc = gdk_gc_new
(window1->window);
gdk_gc_set_foreground (gc, c); 4) Gdk-ERROR **: BadMatch (invalid parameter
attributes)
serial 194 error_code 8 request_code 62 minor_code 0 error 4) occur when I call this
function
gdk_draw_pixmap
(area->proc_name->window,
window1->style->black_gc,
attr->proc_name, 0, value_v, 0, 0, proc_w, proc_h); attr is struct that have member
- GtkWidget
*proc_name;
- GtkWidget *event; area is struct that have member - GdkDrawable *proc_name;
- GdkDrawable *event; both of struct is malloced by use g_malloc()
window1 is GtkWidget * |