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Define header file with example.?
/* example.h */ #ifndef EXAMPLE_H #define EXAMPLE_H /* I'm a header file */ extern int example_variable; extern void example_function (void); typedef struct example_type { int unused; } example_type; #endif
How do you design inline function as a member function?
You define the function at the same time you declare it, usually in the header file, sometimes in an .hpp file.
How do you write a header for a 128x128x128 dds volume texture file with no mipmaps and does it have to be written in binary?
According to the documentation on MSDN, the following code should create an uncompressed volume texture DDS file that's 32x32x32 in size. Re-scale as you see fit. Note: a 128x128x128 RGBA texture will take up 8 MB of VRAM! #include <stdio.h> #include <stdlib.h> #include <math.h> #include <string.h> #define DDSD_CAPS 0x00000001 #define DDSD_HEIGHT 0x00000002 #define DDSD_WIDTH 0x00000004 #define DDSD_PITCH 0x00000008 #define DDSD_PIXELFORMAT 0x00001000 #define DDSD_MIPMAPCOUNT 0x00020000 #define DDSD_LINEARSIZE 0x00080000 #define DDSD_DEPTH 0x00800000 #define DDPF_ALPHAPIXELS 0x00000001 #define DDPF_FOURCC 0x00000004 #define DDPF_RGB 0x00000040 #define DDSCAPS_COMPLEX 0x00000008 #define DDSCAPS_TEXTURE 0x00001000 #define DDSCAPS_MIPMAP 0x00400000 #define DDSCAPS2_CUBEMAP 0x00000200 #define DDSCAPS2_CUBEMAP_POSITIVEX 0x00000400 #define DDSCAPS2_CUBEMAP_NEGATIVEX 0x00000800 #define DDSCAPS2_CUBEMAP_POSITIVEY 0x00001000 #define DDSCAPS2_CUBEMAP_NEGATIVEY 0x00002000 #define DDSCAPS2_CUBEMAP_POSITIVEZ 0x00004000 #define DDSCAPS2_CUBEMAP_NEGATIVEZ 0x00008000 #define DDSCAPS2_VOLUME 0x00200000 int depth = 32; int width = 32; int height = 32; unsigned int header[32]; int main( int argc, char * argv[] ) { if( !argv[1] !strstr( argv[1], ".dds" ) ) { fprintf( stderr, "Usage: noise output.dds\n" ); return 1; } unsigned int cnt = width*height*depth*4; unsigned char * buf = new unsigned char[ cnt ]; while( cnt-- ) { buf[cnt] = rand()>>7; } memset( header, 0, sizeof( header ) ); header[0] = ' SDD'; header[1] = 124; header[2] = DDSD_CAPS | DDSD_PIXELFORMAT | DDSD_WIDTH | DDSD_HEIGHT | DDSD_DEPTH | DDSD_PITCH; header[3] = height; header[4] = width; header[5] = width*4; header[6] = depth; header[19] = 32; header[20] = DDPF_RGB|DDPF_ALPHAPIXELS; header[22] = 8; header[23] = 0xff0000; header[24] = 0xff00; header[25] = 0xff; header[26] = 0xff000000; header[27] = DDSCAPS_TEXTURE | DDSCAPS_COMPLEX; header[28] = DDSCAPS2_VOLUME; FILE * f = fopen( argv[1], "wb" ); if( !f ) { fprintf( stderr, "can't create: %s\n", argv[1] ); return 1; } fwrite( header, 4, 32, f ); fwrite( buf, 1, width*height*depth, f ); fclose( f ); fprintf( stderr, "wrote %s\n", argv[1] ); return 0; }
What is the different between header file and header pointer?
Header file is a file which is meant to be included into another file during compilation. Examples: string.h, stdio.h, inttypes.h. Header pointer is a pointer to an object called header (for example header of a linked list).
What is the header file of graphics?
The header file of graphics in TurboC is graphics.h
How do you define a function?
Put a function prototype in a header file or before the function is called in a C source file. void foo(void); or int bar(int,float char*);
Can an extern function be defined in a C header file?
Declared is the right word. (Don't define functions in headers, unless you really know what you are doing.)
How do you create a user defined header file?
Header files are not much different from usual cpp files. There are basically two different things. It's file extension: you need to choose "header file" when you create it or save as .h file. Second is header files do not have main() function. When you are done with you header file do not forger to include it in your project by writing preprocessor directive:#include "your_header_file.h"
What is the use of header file stdbool.h?
stdbool header file use for a new data type that is boolean value
Which header file is FILE declared in?
The FILE type is declared in stdio.h.
If a file header is lost or corrupted and an application needs that header to read the file how can you recover the contents of the file?
Not possible. Always make backup copies.
What Java header file meaning?
Source code written in Java is simple. There is no preprocessor, no #define and related capabilities, no typedef, and absent those features, no longer any need for header files. Instead of header files, Java language source files provide the declarations of other classes and their methods.
