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Graph/winapi

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winapi

winapi

winapi

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Updated5/1/2026

PageRank0.0001

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WRITTEN_INLanguage

AFFECTSRootCause

You can confine mouse cursor movement to a rectangular area using the `ClipCursor` function — using WinAPI functions. Tension: It accepts a pointer to a `RECT` structure that describes the area, in screen coordinates, the mouse cursor is clamped to. Outcome: The `rcMonitor` member of this structure contains the bounding rectangle of the display.

REQUIRESSolution

You can confine mouse cursor movement to a rectangular area using the `ClipCursor` function — using WinAPI functions. Tension: The area of a display can be obtained using the `GetMonitorInfo` function. Outcome: The `rcMonitor` member of this structure contains the bounding rectangle of the display, whereas the `rcWork` member contains the "work area" of the display.

REQUIRESSolution

If you want to support different window arrangements in the future, you should use the latter — Finding the correct monitor can be done relative to a point (`MonitorFromPoint`), or a window (`MonitorFromWindow`). Tension: support different window arrangements in the future. Outcome: you should use the latter.

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