It is a wrapper over inline assembly interrupt call.
Int86() function: The int86() is a C library function that facilitates access to bare bone DOS and BIOS service interrupts.
#MOUSE COORDINATES IN QT DRIVER#
Use DETECT it means compiler auto select the suitable driver according to requirement. gdriver: It is an integer that specifies which graphics driver is to be used.Void initgraph(int *gdriver, int *gmode, char *pathtodriver) This function is present in “ graphics.h “ header file. This example uses the mousemove event to get two values from the MapMouseEvent object: the x-y point coordinates of the mouse cursor on the HTML map. To switch our output window in Graphic mode steps are listed below:Įnable Graphic mode: For enabling the graphics mode use initgraph() function which is used to initialize the graphics mode.
First is the non-graphic mode and the second is Graphic mode, Here we use graphic mode. of my mouse to be converted to the world y position., As such, the Y coordinate of the mouse depends on the Z coordinate of the position in the world., of the. Now there are two ways to display mouse pointer on C/C++ screen. Use two registers to communicate to a device driver one for input and one for output and send value to device driver through the input register and receive information in it embedded in the output register. These are basically UNION of type REGS defined in “ dos.h“. Use of address registers is also required to access these port. Each device provided by a computer has a unique port which is a hexadecimal value that is designed to be machine-independent enhancing the portability of the program. The idea is to use interrupts to get access to this driver. In actual the communication with the mouse directly is not possible but through the driver provided. The idea is to tell a mouse to do anything on the output screen. Structure Member Alignment, Padding and Data Packing.SQL | Join (Cartesian Join & Self Join).Recursive Practice Problems with Solutions.Analysis of Algorithms | Set 4 (Analysis of Loops).Analysis of Algorithms | Set 2 (Worst, Average and Best Cases).Analysis of Algorithms | Set 3 (Asymptotic Notations).Analysis of Algorithms | Set 1 (Asymptotic Analysis).Commonly Asked Data Structure Interview Questions | Set 1.
#MOUSE COORDINATES IN QT FULL#