minimalist but complete program hand typed here(so might there be typing
errors[though checked thoroughly],[sorry, couldnot copy and paste, floppy drive
crashed and no internet connection in my computer, browsing net through
internet cafe])
people, please check if it happens to you,
#include<gtk/gtk.h>
/*
It could be a posible bug
lets draw a line
(30,120) ---------------------------- (120,20)
lets draw another line
(120,24) ---------------------------- (30,24)
now both lines should be parallel && same size && starts at 30 and end in 120
In windows XP: 2nd line shifts to left by 1 pixel, Gtk Version 2.6.8
In Windows 98: works fine,Gtk version 2.6.8(same dll as above)
In Gentoo 2004.2: works fine, Gtk version 2.4
anything you want to ask:[EMAIL PROTECTED]
*/
static void destroy(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
}
gboolean expose_event_callback(GtkWidget *widget, gpointer data)
{
gdk_draw_rectangle(widget->window,widget->style->white_gc,TRUE,5,5,(widget->allocation.width)-10,(widget->allocation.height)-10);
gdk_draw_line(widget->window,widget->style->black_gc,30,20,120,20);
gdk_draw_line(widget->window,widget->style->black_gc,120,24,30,24);
}
int main(int argc,char *argv[])
{
GtkWidget *window;
GtkWidget *drawing_area;
GtkWidget *box1;
gtk_init(argc,&argv);
window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(G_OBJECT(window),"destroy",G_CALLBACK(destroy),NULL);
box1=gtk_hbox_new(FALSE,0);
gtk_container_add(GTK_CONTAINER(window),box1);
drawing_area=gtk_drawing_area_new();
gtk_widget_set_size_request(drawing_area,200,100);
g_signal_connect(G_OBJECT(drawing_area),"expose_event",G_CALLBACK
(expose_event_callback),gpointer("GOOD");
gtk_box_pack_start(GTK_BOX(box1),drawing_area,TRUE,TRUE,0);
gtk_widget_show(drawing_area);
gtk_widget_show(box1);
gtk_widget_show(window);
gtk_main();
return 0;
}
---------------------------------
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