c:graphics.h:setmousequeuestatus
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c:graphics.h:setmousequeuestatus [2015/05/06 23:06] |
c:graphics.h:setmousequeuestatus [2024/02/16 01:05] (current) |
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| + | ===== setmousequeuestatus ===== | ||
| + | |||
| + | |||
| + | ====Syntax of setmousequeuestatus ==== | ||
| + | <code c> | ||
| + | #include "graphics.h" | ||
| + | voud setmousequeuestatus(int kind, bool status=true); | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== Description of setmousequeuestatus ==== | ||
| + | <code c> | ||
| + | The setmousequeuestatus function is available in the winbgim | ||
| + | implementation of BGI graphics. This function controls whether mouse | ||
| + | events of a particular kind are queued for processing. If the status | ||
| + | parameter is false, then mouse events of the specified kind are not | ||
| + | queued. This means that each time a mouse event of that kind occurs, any | ||
| + | previous events of the same kind are deleted. If the status parameter is | ||
| + | true, then mouse events of the specified kind are queued, and each call | ||
| + | to getmouseclick returns the details about the event at the front of the | ||
| + | queue. | ||
| + | When a window first opens, queuing is turned off for all events. | ||
| + | See also | ||
| + | clearmouseclick | ||
| + | ismouseclick | ||
| + | getmouseclick | ||
| + | Example | ||
| + | /* mouse example */ | ||
| + | #include | ||
| + | #include "graphics.h" | ||
| + | using namespace std; | ||
| + | |||
| + | int main(void) | ||
| + | { | ||
| + | int maxx, maxy; // Maximum x and y pixel coordinates | ||
| + | int x, y; // Coordinates of the mouse click | ||
| + | int divisor; // Divisor for the length of a triangle side | ||
| + | |||
| + | // Put the machine into graphics mode and get the maximum | ||
| + | coordinates: | ||
| + | initwindow(450, 300); | ||
| + | setmousequeuestatus(WM_LBUTTONDOWN); | ||
| + | maxx = getmaxx( ); | ||
| + | maxy = getmaxy( ); | ||
| + | |||
| + | // Draw a white circle with red inside and a radius of 50 pixels: | ||
| + | setfillstyle(SOLID_FILL, RED); | ||
| + | setcolor(WHITE); | ||
| + | fillellipse(maxx/2, maxy/2, 50, 50); | ||
| + | |||
| + | // Print a message and wait for a red pixel to be double clicked: | ||
| + | settextstyle(DEFAULT_FONT, HORIZ_DIR, 2); | ||
| + | outtextxy(20, 20, "Left click several times!"); | ||
| + | setcolor(BLUE); | ||
| + | divisor = 2; | ||
| + | while (!ismouseclick(WM_LBUTTONDOWN)) | ||
| + | { | ||
| + | delay(5000); // Five second delay, so there might be a several | ||
| + | clicks | ||
| + | } | ||
| + | |||
| + | while (ismouseclick(WM_LBUTTONDOWN)) | ||
| + | { | ||
| + | getmouseclick(WM_LBUTTONDOWN, x, y); | ||
| + | cout << "The mouse was clicked at: "; | ||
| + | cout << "x=" << x; | ||
| + | cout << " y=" << y << endl; | ||
| + | } | ||
| + | |||
| + | // Switch back to text mode: | ||
| + | closegraph( ); | ||
| + | } | ||
| + | |||
| + | |||
| + | |||
| + | |||
| + | ==== Example of setmousequeuestatus ==== | ||
| + | <code c> | ||
| + | /* mouse example */ | ||
| + | #include | ||
| + | #include "graphics.h" | ||
| + | using namespace std; | ||
| + | |||
| + | int main(void) | ||
| + | { | ||
| + | int maxx, maxy; // Maximum x and y pixel coordinates | ||
| + | int x, y; // Coordinates of the mouse click | ||
| + | int divisor; // Divisor for the length of a triangle side | ||
| + | |||
| + | // Put the machine into graphics mode and get the maximum | ||
| + | coordinates: | ||
| + | initwindow(450, 300); | ||
| + | setmousequeuestatus(WM_LBUTTONDOWN); | ||
| + | maxx = getmaxx( ); | ||
| + | maxy = getmaxy( ); | ||
| + | |||
| + | // Draw a white circle with red inside and a radius of 50 pixels: | ||
| + | setfillstyle(SOLID_FILL, RED); | ||
| + | setcolor(WHITE); | ||
| + | fillellipse(maxx/2, maxy/2, 50, 50); | ||
| + | |||
| + | // Print a message and wait for a red pixel to be double clicked: | ||
| + | settextstyle(DEFAULT_FONT, HORIZ_DIR, 2); | ||
| + | outtextxy(20, 20, "Left click several times!"); | ||
| + | setcolor(BLUE); | ||
| + | divisor = 2; | ||
| + | while (!ismouseclick(WM_LBUTTONDOWN)) | ||
| + | { | ||
| + | delay(5000); // Five second delay, so there might be a several | ||
| + | clicks | ||
| + | } | ||
| + | |||
| + | while (ismouseclick(WM_LBUTTONDOWN)) | ||
| + | { | ||
| + | getmouseclick(WM_LBUTTONDOWN, x, y); | ||
| + | cout << "The mouse was clicked at: "; | ||
| + | cout << "x=" << x; | ||
| + | cout << " y=" << y << endl; | ||
| + | } | ||
| + | |||
| + | // Switch back to text mode: | ||
| + | closegraph( ); | ||
| + | } | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== See also ==== | ||
| + | [[clearmouseclick]] | ||
| + | [[ismouseclick]] | ||
| + | [[getmouseclick]] | ||
| + | |||
| + | |||
| + | ===== output of setmousequeuestatus example ===== | ||
| + | |||
| + | no output of example at the moment | ||
| + | do not hesitate and add it... | ||
| + | |||
| + | |||
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