74 lines
1.4 KiB
Go
74 lines
1.4 KiB
Go
package input
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import (
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"runtime"
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"strings"
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)
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func PressKey(key, action string, modifiers []string) error {
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vk, ok := vkCode(key)
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if !ok {
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return ErrBadKey
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}
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runtime.LockOSThread()
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defer runtime.UnlockOSThread()
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if err := attachInputDesktop(); err != nil {
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return err
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}
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modVKs := make([]uint16, 0, len(modifiers))
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for _, mod := range modifiers {
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modVK, ok := vkCode(mod)
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if !ok {
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return ErrBadKey
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}
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modVKs = append(modVKs, modVK)
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}
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var inputs []winInput
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for _, modVK := range modVKs {
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inputs = append(inputs, keyInput(modVK, false))
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}
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switch strings.ToLower(strings.TrimSpace(action)) {
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case "down":
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inputs = append(inputs, keyInput(vk, false))
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case "up":
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inputs = append(inputs, keyInput(vk, true))
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default:
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inputs = append(inputs, keyInput(vk, false), keyInput(vk, true))
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for i := len(modVKs) - 1; i >= 0; i-- {
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inputs = append(inputs, keyInput(modVKs[i], true))
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}
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}
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return sendKeyboardInputs(inputs)
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}
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func keyInput(vk uint16, keyUp bool) winInput {
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flags := uint32(0)
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if keyUp {
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flags |= keyeventfKeyup
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}
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if isExtendedVK(vk) {
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flags |= keyeventfExtended
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}
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return winInput{
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Type: inputKeyboard,
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Ki: keyboardData{
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Vk: vk,
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Flags: flags,
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},
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}
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}
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func isExtendedVK(vk uint16) bool {
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switch vk {
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case 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x2D, 0x2E, 0x5B, 0x5C, 0x5D:
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return true
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default:
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return false
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}
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}
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