Video memory is hardware specific. Any c implementation that directly accesses video memory will not be portable. In fact, video memory will probably not be accessible in modern operating systems, because the video driver provides the interface. Also, even the same hardware has different addresses for different modes.
It is better to use the OS's API to drive the image.
It you must access video memory, and assuming that you can, such as in real mode DOS, you can define a pointer unsigned char *ptr and initialize it to the address of video memory such as ptr = 0xB0000 and then use it ptr[someaddress] = somevalue. Keep in mind that you will probably also need to interface with the hardware registers.
It is better to use the OS's API to drive the image.
It is better to use the OS's API to drive the image.
Am I being clear enough? :-)>
Pointer can be defined as variable that is used to store memory address , usually the location another variable in memory. Pointers provide a means through which memory location of a variable can be directly accessed.
Main Memory (RAM).
An address in C or C++ is the location in memory of an object or function. An address is the contents of a pointer, as opposed to the contents of the memory location pointed to by the pointer.
You have one or more errors in your program.
Define 'low level memory' first.
Yes, it should without a problem. Video cards have their own memory, and it doesnt matter if the video memory is a different type to the motherboard memory.
well ofciurse it will lol
All modern memory cards work well for recording video, check the data transfer rate to check if the card supports higher framerate video.
That's correct, it will upgrade your video memory and not your system memory.
how can i get the video memory address in computer?.
If you are using DDR2 RAM, then yes your video card should work. Provided you have suitable power going to the GPU.
assuming everything else is compatible, the memory is not an issue. many graphics card have ddr4 and ddr5 memory which isn't even available as RAM yet.
Well the driver will take up very little hard drive space depending on the video card. Now all video cards have built in memory (RAM) but after the ammount that is on the video card runs out. It will start using the RAM on your computer. Just depends on the game you are trying to run. Also your Proccessor, RAM and Video Card all work together for running games. Hope this helped :)
free() marks the memory locations as available for malloc().
Video memory is the RAM in your machine that is used exclusively for your graphics hardware. This can be both the RAM chips built into the graphics chipset its self, or it can be the RAM that is optionally "carved out" from the system memory. The latter is called "shared video memory" although it isn't really sharing as the graphics hardware uses it exclusively.
To free video memory you must delete videos and have them unistalled.
No you do not need internet for a network video camera. All you need is a large enough RAM or memory drive to fit all your video then you could later on transfer the video to a internet compatible computer.