static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
bits, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // No Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
16, // 16Bit Z-Buffer (Depth Buffer)
0, // No Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
Lesson 1 in C
Author
Hi,
I was playing around with NeHe's Lesson 1; I'm a math fanatic and I thought it'd be really fun to write algorithms and test them in a nice, black OpenGL window.
I'm also a C fanatic, don't ask why. My app for that stuff is PellesC.
So, I try to download the code and load it into PellesC, i thought that for sure I'd get 502938 or so errors, but quite to my surprise I only got about 20 or so. The main problem was that in cpp you use bool, in C you must use BOOL. So, I replaced all bool with BOOL and tried to compile. I now got only two errors:
Building main.OBJ.
C:\Temp\test\main.c(213): error: Initializer must be constant.
C:\Temp\test\main.c(213): error: Too many initializers.
*** Error code: 1 ***
Done.
The code at which this error occors:
I''m pretty crappy when it comes to pure C syntax, but can you declare a static variable in a function and if you can, don''t you have to initialize it the first thing you do before running any other code?
It was a VERY long time since I even tried correcting C code, but if my memorie doesn''t fail me I had to decalre everything in the top of the function.
Good luck,
- Patrik Willbo
The Lord says He can get me out of this mess, but He''s pretty sure you''re fucked.
- Stephen (Braveheart)
It was a VERY long time since I even tried correcting C code, but if my memorie doesn''t fail me I had to decalre everything in the top of the function.
Good luck,
- Patrik Willbo
The Lord says He can get me out of this mess, but He''s pretty sure you''re fucked.
- Stephen (Braveheart)
''lo,
I also use PellesC. You can''t declare and initialise a structure with a variable.
You must do something like this : (i use nehe basecode)
I also use PellesC. You can''t declare and initialise a structure with a variable.
You must do something like this : (i use nehe basecode)
PIXELFORMATDESCRIPTOR pfd = // pfd Tells Windows How We Want Things To Be { sizeof (PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor 1, // Version Number PFD_DRAW_TO_WINDOW | // Format Must Support Window PFD_SUPPORT_OPENGL | // Format Must Support OpenGL PFD_DOUBLEBUFFER, // Must Support Double Buffering PFD_TYPE_RGBA, // Request An RGBA Format //window->init.bitsPerPixel, // Select Our Color Depth 32, 0, 0, 0, 0, 0, 0, // Color Bits Ignored 0, // No Alpha Buffer 0, // Shift Bit Ignored 0, // No Accumulation Buffer 0, 0, 0, 0, // Accumulation Bits Ignored 16, // 16Bit Z-Buffer (Depth Buffer) 0, // No Stencil Buffer 0, // No Auxiliary Buffer PFD_MAIN_PLANE, // Main Drawing Layer 0, // Reserved 0, 0, 0 // Layer Masks Ignored }; RECT windowRect = {0, 0, 0, 0}; // Define Our Window Coordinates GLuint PixelFormat;//You put the variable you want in the pfd. pfd.cColorBits=window->init.bitsPerPixel;
Author
Thanks Bourricot, but it didn''t fully solve:
First, it didn''t like GLuint PixelFormat;, it turned out that this was defined elsewhere, so I removed it and all was well, except for the following bit of code:
pfd.cColorBits=window->init.bitsPerPixel;
It gives the following errors:
C:\Temp\Line\line.c(226): error: Undeclared identifier ''window''.
C:\Temp\Line\line.c(226): error: Left operand of -> has incompatible type ''int''.
C:\Temp\Line\line.c(226): error: Left operand of . has incompatible type ''int''.
I killed the first error with:
int window;
But the other two don''t give up.
First, it didn''t like GLuint PixelFormat;, it turned out that this was defined elsewhere, so I removed it and all was well, except for the following bit of code:
pfd.cColorBits=window->init.bitsPerPixel;
It gives the following errors:
C:\Temp\Line\line.c(226): error: Undeclared identifier ''window''.
C:\Temp\Line\line.c(226): error: Left operand of -> has incompatible type ''int''.
C:\Temp\Line\line.c(226): error: Left operand of . has incompatible type ''int''.
I killed the first error with:
int window;
But the other two don''t give up.
Oups, sorry it was a cut and paste from nehe base code.
for lesson 1
pfd.cColorBits=bits;
Anyway, you should use the lcc win32 port. pellesC is derived from LCC.
for lesson 1
pfd.cColorBits=bits;
static PIXELFORMATDESCRIPTOR pfd= // pfd Tells Windows How We Want Things To Be { sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor 1, // Version Number PFD_DRAW_TO_WINDOW | // Format Must Support Window PFD_SUPPORT_OPENGL | // Format Must Support OpenGL PFD_DOUBLEBUFFER, // Must Support Double Buffering PFD_TYPE_RGBA, // Request An RGBA Format 0, // Select Our Color Depth 0, 0, 0, 0, 0, 0, // Color Bits Ignored 0, // No Alpha Buffer 0, // Shift Bit Ignored 0, // No Accumulation Buffer 0, 0, 0, 0, // Accumulation Bits Ignored 16, // 16Bit Z-Buffer (Depth Buffer) 0, // No Stencil Buffer 0, // No Auxiliary Buffer PFD_MAIN_PLANE, // Main Drawing Layer 0, // Reserved 0, 0, 0 // Layer Masks Ignored }; pfd.cColorBits = bits;Anyway, you should use the lcc win32 port. pellesC is derived from LCC.
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