2008-09-15 15:00:23 +04:00
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#include <FL/Fl.H>
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#include <FL/Fl_Window.H>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Value_Slider.H>
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#include <FL/x.H>
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2007-12-28 13:58:56 +03:00
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#include <stdio.h>
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Fl_Window* win;
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Fl_Value_Slider* slider;
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Atom opacity_atom;
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void slider_cb(Fl_Widget*, void*) {
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printf("callback %i\n", (int)slider->value());
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//int v = (int)slider->value();
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//unsigned int v = (unsigned int)0xe0000000;
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unsigned int v = (unsigned int)4;
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XChangeProperty(fl_display, fl_xid(win), opacity_atom, XA_CARDINAL, 32, PropModeReplace, (unsigned char*)&v, 1);
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XFlush(fl_display);
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}
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int main(void) {
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fl_open_display();
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opacity_atom = XInternAtom(fl_display, "_NET_WM_WINDOW_OPACITY", False);
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win = new Fl_Window(240, 175, "Opacity test");
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win->begin();
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Fl_Box* sbox = new Fl_Box(10, 9, 220, 102, "sample text");
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sbox->box(FL_ENGRAVED_BOX);
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sbox->color((Fl_Color)186);
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sbox->labelcolor((Fl_Color)23);
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slider = new Fl_Value_Slider(10, 142, 220, 18, "Opacity percent:");
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slider->type(1);
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slider->step(1);
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slider->maximum(100);
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slider->minimum(1);
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slider->value(100);
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slider->callback(slider_cb);
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slider->align(FL_ALIGN_TOP_LEFT);
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win->end();
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win->show();
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slider_cb(0,0);
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return Fl::run();
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}
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