Difference between revisions of "Slider"
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Revision as of 18:44, 1 July 2014
A slider is a bar shaped element in which a much smaller bar can be moved from the lowest (0) to the highest (100) value. The text attribute of the slider is displayed in the very center of the slider bar.
API reference
The API reference of the slider widget can be found here.
Example
The following example shows how to create and use a vertical and a horizontal slider:
#include "gfx.h" static GListener gl; static GHandle ghSlider1, ghSlider2; static void createWidgets(void) { GWidgetInit wi; // Apply some default values for GWIN wi.customDraw = 0; wi.customParam = 0; wi.customStyle = 0; wi.g.show = TRUE; // create Slider1 wi.g.y = 10; wi.g.x = 10; wi.g.width = 200; wi.g.height = 20; wi.text = "S1"; ghSlider1 = gwinSliderCreate(NULL, &wi); // create Slider2 wi.g.y = 40; wi.g.x = 10; wi.g.width = 20; wi.g.height = 200; wi.text = "S2"; ghSlider2 = gwinSliderCreate(NULL, &wi); } int main(void) { GEvent* pe; // Initialize the display gfxInit(); // Set the widget defaults gwinSetDefaultFont(gdispOpenFont("UI2")); gwinSetDefaultStyle(&WhiteWidgetStyle, FALSE); gdispClear(White); // Attach the mouse input gwinAttachMouse(0); // create the widget createWidgets(); // We want to listen for widget events geventListenerInit(&gl); gwinAttachListener(&gl); while(1) { // Get an Event pe = geventEventWait(&gl, TIME_INFINITE); switch(pe->type) { case GEVENT_GWIN_SLIDER: printf("Slider %s = %d\n", gwinGetText(((GEventGWinSlider *)pe)->slider), ((GEventGWinSlider *)pe)->position ); break; default: break; } } return 0; }
