Compress Function

Compresses data given the compression context, input buffer, output buffer, and compression level.

Syntax

HRESULT WINAPI Compress(  
   IN OUT PVOID context,  
   IN CONST BYTE* input_buffer,  
   IN LONG input_buffer_size,  
   IN PBYTE output_buffer,  
   IN LONG output_buffer_size,  
   OUT PLONG input_used,  
   OUT PLONG output_used,  
   IN INT compression_level  
);  

Parameters

context
[IN][OUT] Pointer to the new compression context.

input_buffer
[IN] Pointer to the input buffer.

input_buffer_size
[IN] The size of the input buffer.

output_buffer
[IN] Pointer to the output buffer.

output_buffer_size
[IN] Size of the output buffer.

input_used
[IN] Amount of input buffer used.

output_used
[OUT] Amount of output buffer used.

compression_level
[IN] Compression level (1…10).

Return Value

An HRESULT. Possible values include, but are not limited to, those in the following table.

Remarks

When used with IIS, this method is called repeatedly until all the data required to fulfill the request is compressed.

Requirements

See Also

Web Server Core Functions