27 lines
914 B
Markdown
27 lines
914 B
Markdown
# CLContextCreate
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Creates an OpenCL context and returns its handle.
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```
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int CLContextCreate(
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int device=CL_USE_ANY // Serial number of the OpenCL device or macro
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);
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```
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Parameter
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device
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[in] The ordinal number of the OpenCL-device in the system. Instead of a specific number, you can specify one of the following values:
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- CL_USE_ANY – any available device with OpenCL support is allowed;
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- CL_USE_CPU_ONLY – only OpenCL emulation on CPU is allowed;
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- CL_USE_GPU_ONLY – OpenCL emulation is prohibited and only specialized devices with OpenCL support (video cards) can be used;
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- CL_USE_GPU_DOUBLE_ONLY – only the GPUs that support type [double](/en/docs/basis/types/double) are allowed.
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Return Value
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A handle to the OpenCL context if successful, otherwise -1. For information about the error, use the [GetLastError()](/en/docs/check/getlasterror) function.
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