| 1 | # WslcSetProcessSettingsCallbacks |
| 2 | |
| 3 | ```c |
| 4 | STDAPI WslcSetProcessSettingsCallbacks(_In_ WslcProcessSettings* processSettings, _In_ const WslcProcessCallbacks* callbacks, _In_opt_ PVOID context); |
| 5 | ``` |
| 6 | |
| 7 | | Parameter | Type | Direction | |
| 8 | |---|---|---| |
| 9 | | `processSettings` | `WslcProcessSettings*` | in | |
| 10 | | `callbacks` | `const WslcProcessCallbacks*` | in | |
| 11 | | `context` | `PVOID` | in, optional | |
| 12 | |
| 13 | Return value: `HRESULT`. |
| 14 | |
| 15 | Header note: using callbacks consumes the process I/O handles and prevents later acquisition through `WslcGetProcessIOHandle`. |
| 16 | |
| 17 | Example: |
| 18 | |
| 19 | ```c |
| 20 | void CALLBACK OnStdOut(WslcProcessIOHandle ioHandle, const BYTE* data, uint32_t dataBytes, PVOID context) |
| 21 | { |
| 22 | UNREFERENCED_PARAMETER(ioHandle); |
| 23 | UNREFERENCED_PARAMETER(context); |
| 24 | fwrite(data, 1, dataBytes, stdout); |
| 25 | } |
| 26 | |
| 27 | void CALLBACK OnExit(INT32 exitCode, PVOID context) |
| 28 | { |
| 29 | UNREFERENCED_PARAMETER(context); |
| 30 | printf("exit=%ld\n", (long)exitCode); |
| 31 | } |
| 32 | |
| 33 | WslcProcessCallbacks callbacks = { 0 }; |
| 34 | callbacks.onStdOut = OnStdOut; |
| 35 | callbacks.onStdErr = OnStdOut; |
| 36 | callbacks.onExit = OnExit; |
| 37 | |
| 38 | HRESULT hr = WslcSetProcessSettingsCallbacks(&processSettings, &callbacks, NULL); |
| 39 | ``` |